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Example of an acknowledged P.A.S. alarm:
ALARM IN ZONE 0001
< Acknowledged P.A.S. alarm message
First Floor
Conference Room 100 [PHOTO SMOKE ]
< Zone P.A.S. alarm text(32 Characters)
< Device text (26 Characters) / type of device
OUTPUT DELAY 140s
.ALARMS: 2 MNS: 0 SUPERVISORY: 0..
< Output delay Stage 2 - time period
< # Alarms # MNS and # Supervisory events
The cause of the alarm can now be investigated. If the alarm is a false alarm and there is no longer smoke in the
detector chamber, pressing the “RESET” button on the panel will clear the alarm condition. This must be done
before the investigation time period expires or the panel will enter a full alarm condition and will activate all
notification appliance circuits, relays, and other outputs programmed by the installer.
Note: If an additional alarm occurs on the system during a P.A.S. alarm cycle, the P.A.S. output delay time
periods will terminated and a full alarm condition will be generated activating all notification appliance
circuits, relays, and other outputs programmed by the installer. In addition, activating a manual pull station
at anytime during the P.A.S. output delay time periods will terminate the P.A.S. process and activate all
programmed outputs.
During an alarm (including P.A.S event), mass notification and/or supervisory condition all other events are
suppressed from the display. Suppressed events during this situation can be interrogated through the display’s
menu functions.
7.6 Alarm Verification
R
72
6.8.5.4.1 Alarm Verification
[1] Applies to smoke detectors only.
Configuration must be password protected.
[2] It must not delay the actuation of alarms more
than 60 seconds.
[3] Alarms from other devices must actuate
alarms without delay.
Alarm Verification provides a mechanism to delay an alarm
from a smoke detector due to transitory events. It should
not, however, be used as a substitute for proper detector
location / application or regular system maintenance.
Alarm Verification is a “False Alarm
Management” programmable feature of
all Axis
AX
fire alarm control panels. The
alarm verification feature operates on a
system or device basis (determined by
programming) and is applicable to
smoke detectors only. Manual pull
stations are not verifiable.
If the smoke concentration level of a
detector is at or above the alarm
threshold at the end of the retard-reset-
restart period the panel will enter a full
alarm condition.
If the smoke concentration level is
below the alarm threshold at the end of
the retard-reset-restart period the panel
will enter a 60 second confirmation
period. If this or any other detector
enters an alarm condition during the
confirmation period, the panel will enter
a full alarm condition.
Maximum retard-reset-restart period is 30 seconds.
Alarm verification shall not be used with multiple
detector or cross-zone applications.
AB C DE
t=0 Seconds t=n Seconds
ALARM VERIFICATION PERIOD
ALARM VERIFICATION TIMING DIAGRAM
RETARD-RESET-RESTART PERIOD – MAXIMUM 60 SECONDS CONFIRMATION PERIOD – 60 SECONDS OPTIONAL
REGIONALARM REQUIRED AT CONTROL UNITNO ALARM AT CONTROL UNIT
CONTROL UNIT DETECTOR RESTART
RETARD-RESET PERIOD (POWER-UP) PERIOD
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